2004-08-04  James Troup  <james@nocrew.org>	* jennifer (check_files): check for unknown component before	checking for NEWness.2004-06-17  James Troup  <james@nocrew.org>	* jennifer (check_dsc): s/dsc_whitespace_rules/signing_rules/.	* tea (check_dscs): likewise.	* utils.py (parse_changes): s/dsc_whitespace_rules/signing_rules/,	change from boolean to a variable with 3 possible values, 0 and 1	as before, -1 means don't require a signature.  Makes	parse_changes() useful for parsing arbitary RFC822-style files,	e.g. 'Release' files.	(check_signature): add support for detached signatures by passing	the files the signature is for as an optional third argument.	s/filename/sig_filename/g.  Add a fourth optional argument to	choose the keyring(s) to use.  Don't os.path.basename() the	sig_filename before checking it for taint.	(re_taint_free): allow '/'.